10 entries under furtive topic. ×

3
backdoor(close, sensitive, inside, clandestine, underground)
1
camouflaged(close, clandestine, underground, undisclosed)
1
discreet(close, restricted, inside, clandestine, underground)
1
dissembled(close, restricted, clandestine, underground, discreet)
1
dissimulated(close, restricted, inside, clandestine, underground)
1
incognito(close, restricted, clandestine, underground, discreet)
1
inside(close, restricted, clandestine, underground, discreet)
1
sneak(close, restricted, inside, clandestine, underground)
1
sub-rosa(close, sensitive, clandestine, underground, undisclosed)
1
unacknowledged(close, sensitive, inside, clandestine, underground)
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APASmart Define. (2015). backstairs thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/backstairs/thesaurus/synonyms
ChicagoSmart Define. 2015. "backstairs thesaurus" https://smartdefine.org/backstairs/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, backstairs thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/backstairs/thesaurus/synonyms>.
MLASmart Define. "backstairs thesaurus" 13 April 2015. Web. 29 September 2026. <https://smartdefine.org/backstairs/thesaurus/synonyms>